/// <summary>
/// 選択されたアイテムを外部ファイルに保存する.
/// </summary>
/// <returns></returns>
private async Task ExportItemsAsync()
{
var items = GetSelectedItems();
if (items == null)
{
return;
}
var picker = new Windows.Storage.Pickers.FileSavePicker();
picker.FileTypeChoices.Add("zip", new string[] { ".zip" });
var file = await picker.PickSaveFileAsync();
if (file == null)
{
return;
}
this.ItemsChanging = true;
using (var zipArchive = await ZipArchiveHelper.CreateZipArchiveFromFileAsync(file, System.IO.Compression.ZipArchiveMode.Create))
{
foreach (var item in items)
{
await item.ExportAsync(zipArchive);
}
}
this.ItemsChanging = false;
}
/// <summary>
/// 手描き入力を外部に保存する.
/// </summary>
/// <param name="targetArchive">保存先のZipArchive</param>
/// <returns></returns>
public async Task ExportAsync(System.IO.Compression.ZipArchive targetArchive)
{
if (targetArchive == null)
{
throw new ArgumentNullException("targetArchive");
}
var folder = await ApplicationData.Current.LocalFolder.GetFolderAsync(this.InternalName);
await ZipArchiveHelper.AddEntriesFromFolderAsync(targetArchive, folder);
var propertyText = SerializeProperties();
await ZipArchiveHelper.AddEntriesFromTextAsync(targetArchive, String.Format(PropertyEntryNameFormat, this.InternalName), propertyText, Encoding.UTF8);
}
/// <summary>
/// 外部に保存した手描き入力を読み込む.
/// </summary>
/// <param name="sourceArchive"></param>
/// <returns></returns>
public static async Task ImportAsync(System.IO.Compression.ZipArchive sourceArchive)
{
if (sourceArchive == null)
{
throw new ArgumentNullException("sourceArchive");
}
var workdir = await ApplicationData.Current.TemporaryFolder.CreateFolderAsync("ItemImport", CreationCollisionOption.ReplaceExisting);
await ZipArchiveHelper.ExtractFromFileAsync(sourceArchive, workdir);
var itemsDir = await workdir.GetFoldersAsync();
foreach (var itemDir in itemsDir)
{
var item = new CanvasItem();
if (!await item.SaveAsync())
{
continue;
}
var propertyFile = (await workdir.TryGetItemAsync(String.Format(PropertyEntryNameFormat, itemDir.Name))) as StorageFile;
if (propertyFile == null)
{
continue;
}
var propertyText = await FileIO.ReadTextAsync(propertyFile, Windows.Storage.Streams.UnicodeEncoding.Utf8);
item.DeserializeProperties(propertyText);
await propertyFile.DeleteAsync();
var newItemDir = await ApplicationData.Current.LocalFolder.GetFolderAsync(item.InternalName);
foreach (var file in await itemDir.GetFilesAsync())
{
await file.MoveAsync(newItemDir, file.Name, NameCollisionOption.ReplaceExisting);
}
if (!await item.LoadAsync())
{
continue;
}
await CanvasItemManager.Current.AddItemAsync(item);
}
await workdir.DeleteAsync();
}
/// <summary>
/// 外部ファイルに保存されたアイテムを読み込む.
/// </summary>
/// <returns></returns>
private async Task ImportItemsAsync()
{
var picker = new Windows.Storage.Pickers.FileOpenPicker();
picker.FileTypeFilter.Add(".zip");
var file = await picker.PickSingleFileAsync();
if (file == null)
{
return;
}
this.ItemsChanging = true;
using (var zipArchive = await ZipArchiveHelper.CreateZipArchiveFromFileAsync(file, System.IO.Compression.ZipArchiveMode.Read))
{
await CanvasItem.ImportAsync(zipArchive);
}
this.ItemsChanging = false;
}
